A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Design method of prefabricated assembled concrete guardrail structure
The invention discloses a design method of a prefabricated assembled concrete guardrail structure. The design method comprises the following specific design steps: selecting a guardrail material; performing structural size design on the concrete prefabricated wall body, the profile steel stand column and the connecting piece according to specifications; calculating whether the main stress part of the structure meets the design protection capability requirement or not through a formula; a three-dimensional model of the guardrail structure is established, the design structure and the connection position are rechecked, and a preliminary structure scheme is formed; a finite element simulation model is established, and overall structural mechanical analysis and connection mode optimization are carried out; computer finite element simulation collision simulation is carried out according to evaluation standard requirements, and safety performance evaluation is carried out on the structure; a real vehicle full-scale collision test is carried out, and practical engineering application is met. According to the design method, the characteristic that a beam column type guardrail stand column is easy and convenient to install and the advantage that a concrete prefabricated wall body is resistant to impact are combined, site construction is easier, the rapid assembling technology of the prefabricated and assembled concrete guardrail is achieved, the combined structure has high protection capacity, and the requirement for reutilization of the concrete guardrail is met.
本发明公开了一种预制拼装混凝土护栏结构设计方法，具体设计步骤如下：选择护栏材料；依据规范进行混凝土预制墙体、型钢立柱及连接件结构尺寸设计；公式计算结构主要受力部位是否满足设计防护能力要求；建立护栏结构三维立体模型，复核设计结构和连接位置，形成初步结构方案；建立有限元仿真模型，进行整体结构力学分析和优化连接方式；按照评价标准要求进行计算机有限元仿真碰撞模拟，对结构进行安全性能评价；进行实车足尺碰撞试验，满足实际工程应用。本设计方法，结合梁柱式护栏立柱安装简便的特性和混凝土预制墙体抗撞击的优势，现场施工更简易，实现预制拼装混凝土护栏快速拼装工艺，组合结构具有高防护能力，满足混凝土护栏可再利用需求。
Design method of prefabricated assembled concrete guardrail structure
The invention discloses a design method of a prefabricated assembled concrete guardrail structure. The design method comprises the following specific design steps: selecting a guardrail material; performing structural size design on the concrete prefabricated wall body, the profile steel stand column and the connecting piece according to specifications; calculating whether the main stress part of the structure meets the design protection capability requirement or not through a formula; a three-dimensional model of the guardrail structure is established, the design structure and the connection position are rechecked, and a preliminary structure scheme is formed; a finite element simulation model is established, and overall structural mechanical analysis and connection mode optimization are carried out; computer finite element simulation collision simulation is carried out according to evaluation standard requirements, and safety performance evaluation is carried out on the structure; a real vehicle full-scale collision test is carried out, and practical engineering application is met. According to the design method, the characteristic that a beam column type guardrail stand column is easy and convenient to install and the advantage that a concrete prefabricated wall body is resistant to impact are combined, site construction is easier, the rapid assembling technology of the prefabricated and assembled concrete guardrail is achieved, the combined structure has high protection capacity, and the requirement for reutilization of the concrete guardrail is met.
本发明公开了一种预制拼装混凝土护栏结构设计方法，具体设计步骤如下：选择护栏材料；依据规范进行混凝土预制墙体、型钢立柱及连接件结构尺寸设计；公式计算结构主要受力部位是否满足设计防护能力要求；建立护栏结构三维立体模型，复核设计结构和连接位置，形成初步结构方案；建立有限元仿真模型，进行整体结构力学分析和优化连接方式；按照评价标准要求进行计算机有限元仿真碰撞模拟，对结构进行安全性能评价；进行实车足尺碰撞试验，满足实际工程应用。本设计方法，结合梁柱式护栏立柱安装简便的特性和混凝土预制墙体抗撞击的优势，现场施工更简易，实现预制拼装混凝土护栏快速拼装工艺，组合结构具有高防护能力，满足混凝土护栏可再利用需求。
Design method of prefabricated assembled concrete guardrail structure
一种预制拼装混凝土护栏结构设计方法
YANG FUYU (author) / WANG XIN (author) / GONG SHUAI (author) / KANG HANJING (author) / LIU SIYUAN (author) / MA QING (author) / HU XUECHENG (author) / DENG BAO (author) / YAN SHUMING (author)
2023-04-04
Patent
Electronic Resource
Chinese
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